In the research and development of vertical mills, our company has absorbed foreign advanced large-scale vertical mill technology, and referred to domestic production of small and medium-sized vertical mills, innovative ideas in design, using new technology and new materials, and through years of practical experience and optimization improvements , And its performance indicators are at the leading level in the industry. The vertical mill is mainly composed of motor, transmission system, cylinder, screw agitator and protective lining. During the operation of the low-speed rotating stirring screw, due to the centrifugal force, gravity, and friction, a certain pressure is formed between the grinding media, and the grinding action between the media is mainly used to crush the material. The pulverizing medium and the material realize an orderly movement cycle and a basic balance of the macroscopic force. In the stirring spiral, it rises in a spiral manner that is less than the lifting speed, and falls in a spiral manner between the inner lining and the outer edge of the spiral. The conveying of qualified materials rises with the conveying medium and overflows from the upper part of the tower mill body after being internally classified.
Our company's vertical mill has the following advantages:
1. The connection between the motor and the transmission part adopts the motor upright and belt drive, which can effectively reduce the height of the vertical mill, reduce capital investment and reduce the difficulty of installation.
2. In addition to the tapered roller bearing designed to limit the radial displacement of the main shaft, the transmission part is also equipped with a special high-strength thrust bearing to ensure the supporting strength of the main shaft and improve the reliability and stability of the equipment.
3. Cylinder liner The liner is provided with regular wave shapes in the circumferential direction, and equidistant wave grooves are arranged in the axial direction according to the depth of the grinding medium. After using the liner, the grinding medium has a conventional vertical mill In addition to the machine movement characteristics, regular radial movement is added, which further improves the grinding efficiency.
4. Adopt unequal-thickness spiral liner, the bottom liner adopts Archimedes spiral line and the main shaft transition, which maximizes the life of the spiral, reduces the resistance when starting, and reduces the starting load of the motor.